r255106 - in /trunk/gcc: ChangeLog ada/ChangeLo...

[ebotcazou@gcc.gnu.org]

Author: ebotcazou
Date: Thu Nov 23 16:36:28 2017
New Revision: 255106

URL: https://gcc.gnu.org/viewcvs?rev=255106&root=gcc&view=rev
Log:
	* doc/generic.texi (ANNOTATE_EXPR): Document 3rd operand.
	* cfgloop.h (struct loop): Add unroll field.
	* function.h (struct function): Add has_unroll bitfield.
	* gimplify.c (gimple_boolify) <ANNOTATE_EXPR>: Deal with unroll kind.
	(gimplify_expr) <ANNOTATE_EXPR>: Propagate 3rd operand.
	* loop-init.c (pass_loop2::gate): Return true if cfun->has_unroll.
	(pass_rtl_unroll_loops::gate): Likewise.
	* loop-unroll.c (decide_unrolling): Tweak note message.  Skip loops
	for which loop->unroll==1.
	(decide_unroll_constant_iterations): Use note for consistency and
	take loop->unroll into account.  Return early if loop->unroll is set.
	Fix thinko in existing test.
	(decide_unroll_runtime_iterations): Use note for consistency and
	take loop->unroll into account.
	(decide_unroll_stupid): Likewise.
	* lto-streamer-in.c (input_cfg): Read loop->unroll.
	* lto-streamer-out.c (output_cfg): Write loop->unroll.
	* tree-cfg.c (replace_loop_annotate_in_block) <annot_expr_unroll_kind>:
        New case.
	(replace_loop_annotate) <annot_expr_unroll_kind>: Likewise.
	(print_loop): Print loop->unroll if set.
	* tree-core.h (enum annot_expr_kind): Add annot_expr_unroll_kind.
	* tree-inline.c (copy_loops): Copy unroll and set cfun->has_unroll.
	* tree-pretty-print.c (dump_generic_node) <annot_expr_unroll_kind>:
	New case.
	* tree-ssa-loop-ivcanon.c (try_unroll_loop_completely): Bail out if
	loop->unroll is set and smaller than the trip count.  Otherwise bypass
	entirely the heuristics if loop->unroll is set.  Remove dead note.
	Fix off-by-one bug in other note.
	(try_peel_loop): Bail out if loop->unroll is set.  Fix formatting.
	(tree_unroll_loops_completely_1): Force unrolling if loop->unroll
	is greater than 1.
	(tree_unroll_loops_completely): Make static.
	(pass_complete_unroll::execute): Use correct type for variable.
	(pass_complete_unrolli::execute): Fix formatting.
	* tree.def (ANNOTATE_EXPR): Add 3rd operand.
ada/
	* gcc-interface/trans.c (gnat_gimplify_stmt) <LOOP_STMT>: Pass 3rd
	operand to ANNOTATE_EXPR and also pass unrolling hints.
c/
	* c-parser.c (c_parser_while_statement): Pass 3rd operand to
	ANNOTATE_EXPR.
	(c_parser_do_statement): Likewise.
	(c_parser_for_statement): Likewise.
cp/
	* pt.c (tsubst_expr) <ANNOTATE_EXPR>: Recurse on 3rd operand.
	* semantics.c (finish_while_stmt_cond): Pass 3rd operand to
	ANNOTATE_EXPR.
	(finish_do_stmt): Likewise.
	(finish_for_cond): Likewise.
fortran/
	* trans-stmt.c (gfc_trans_forall_loop): Pass 3rd operand to
	ANNOTATE_EXPR.

Added:
    trunk/gcc/testsuite/gnat.dg/unroll1.adb
    trunk/gcc/testsuite/gnat.dg/unroll1.ads
    trunk/gcc/testsuite/gnat.dg/unroll2.adb
    trunk/gcc/testsuite/gnat.dg/unroll2.ads
    trunk/gcc/testsuite/gnat.dg/unroll3.adb
    trunk/gcc/testsuite/gnat.dg/unroll3.ads
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/ada/ChangeLog
    trunk/gcc/ada/gcc-interface/trans.c
    trunk/gcc/c/ChangeLog
    trunk/gcc/c/c-parser.c
    trunk/gcc/cfgloop.h
    trunk/gcc/cp/ChangeLog
    trunk/gcc/cp/pt.c
    trunk/gcc/cp/semantics.c
    trunk/gcc/doc/generic.texi
    trunk/gcc/fortran/ChangeLog
    trunk/gcc/fortran/trans-stmt.c
    trunk/gcc/function.h
    trunk/gcc/gimplify.c
    trunk/gcc/loop-init.c
    trunk/gcc/loop-unroll.c
    trunk/gcc/lto-streamer-in.c
    trunk/gcc/lto-streamer-out.c
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/testsuite/gcc.dg/pr64277.c
    trunk/gcc/testsuite/gcc.dg/tree-prof/unroll-1.c
    trunk/gcc/testsuite/gcc.dg/tree-ssa/cunroll-1.c
    trunk/gcc/testsuite/gcc.dg/tree-ssa/cunroll-12.c
    trunk/gcc/testsuite/gcc.dg/tree-ssa/cunroll-13.c
    trunk/gcc/testsuite/gcc.dg/tree-ssa/cunroll-14.c
    trunk/gcc/testsuite/gcc.dg/tree-ssa/cunroll-2.c
    trunk/gcc/testsuite/gcc.dg/tree-ssa/cunroll-3.c
    trunk/gcc/testsuite/gcc.dg/tree-ssa/cunroll-5.c
    trunk/gcc/testsuite/gcc.dg/tree-ssa/loop-1.c
    trunk/gcc/testsuite/gcc.dg/tree-ssa/loop-23.c
    trunk/gcc/testsuite/gcc.dg/tree-ssa/pr61743-1.c
    trunk/gcc/testsuite/gcc.dg/tree-ssa/pr61743-2.c
    trunk/gcc/testsuite/gcc.dg/unroll-2.c
    trunk/gcc/testsuite/gcc.dg/unroll-3.c
    trunk/gcc/testsuite/gcc.dg/unroll-4.c
    trunk/gcc/testsuite/gcc.dg/unroll-5.c
    trunk/gcc/testsuite/gcc.dg/unroll-7.c
    trunk/gcc/tree-cfg.c
    trunk/gcc/tree-core.h
    trunk/gcc/tree-inline.c
    trunk/gcc/tree-pretty-print.c
    trunk/gcc/tree-ssa-loop-ivcanon.c
    trunk/gcc/tree.def